Institution: | Nature Conservation and Plant Ecology Group, Wageningen University, Droevendaalsesteeg 3a, 6700 AA Wageningen, the Netherlands;;Ecole Polytechnique Fédérale de Lausanne EPFL, Laboratory of Ecological Systems ECOS, Station 2, CH-1015 Lausanne, Switzerland;;Department of Aquatic Ecology and Environmental Biology, Nijmegen University, Toernooiveld 1, 6525 ED Nijmegen, the Netherlands;and;Alterra, Centre for Ecosystem Studies, PO Box 47, 6700 AA Wageningen, the Netherlands |